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staging: comedi: addi_apci_2032: only allocate needed subdevices 

The addi-data "common" code always allocated 7 subdevices. This driver
only requires 2. Change the allocation and remove the unused subdevices.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-11-29 18:18:03 -07:00 коммит произвёл Greg Kroah-Hartman
Родитель 490555966e
Коммит 0c33bdd01a
1 изменённых файлов: 5 добавлений и 26 удалений
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31
drivers/staging/comedi/drivers/addi_apci_2032.c
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@ -70,7 +70,7 @@ static int apci2032_auto_attach(struct comedi_device *dev,
const struct addi_board *this_board;
struct addi_private *devpriv;
struct comedi_subdevice *s;
int ret, n_subdevices;
int ret;
this_board = addi_find_boardinfo(dev, pcidev);
if (!this_board)
@ -95,25 +95,12 @@ static int apci2032_auto_attach(struct comedi_device *dev,
dev->irq = pcidev->irq;
}
n_subdevices = 7;
ret = comedi_alloc_subdevices(dev, n_subdevices);
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
/* Allocate and Initialise AI Subdevice Structures */
/* Initialize the digital output subdevice */
s = &dev->subdevices[0];
s->type = COMEDI_SUBD_UNUSED;
/* Allocate and Initialise AO Subdevice Structures */
s = &dev->subdevices[1];
s->type = COMEDI_SUBD_UNUSED;
/* Allocate and Initialise DI Subdevice Structures */
s = &dev->subdevices[2];
s->type = COMEDI_SUBD_UNUSED;
/* Allocate and Initialise DO Subdevice Structures */
s = &dev->subdevices[3];
if (this_board->i_NbrDoChannel) {
s->type = COMEDI_SUBD_DO;
s->subdev_flags =
@ -133,8 +120,8 @@ static int apci2032_auto_attach(struct comedi_device *dev,
s->type = COMEDI_SUBD_UNUSED;
}
/* Allocate and Initialise Timer Subdevice Structures */
s = &dev->subdevices[4];
/* Initialize the watchdog subdevice */
s = &dev->subdevices[1];
if (this_board->i_Timer) {
s->type = COMEDI_SUBD_TIMER;
s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@ -151,14 +138,6 @@ static int apci2032_auto_attach(struct comedi_device *dev,
s->type = COMEDI_SUBD_UNUSED;
}
/* Allocate and Initialise TTL */
s = &dev->subdevices[5];
s->type = COMEDI_SUBD_UNUSED;
/* EEPROM */
s = &dev->subdevices[6];
s->type = COMEDI_SUBD_UNUSED;
apci2032_reset(dev);
return 0;
}